TAS5704

TAS5704 www.ti.com SLOS563A – MARCH 2008 – REVISED AUGUST 2010 20-W Stereo Digital Audio Power Amplifier With Feedback Check for Samples: TAS5704 FEATURES 1 2 Audio Input/Output – 20-W into an 8-Ω Load From an 18-V Supply – Two Serial Audio Inputs (Four Audio Channels) – Supports Multiple Output Configurations: – 2-Ch Bridged Outputs (20 W × 2) – 4-Ch Single-Ended Outputs (10 W × 4) – 2-Ch Single-Ended + 1-Ch Bridged (2.1) (10 W × 2 + 20 W) Closed Loop Power Stage Architecture – Improved PSRR Reduces Power Supply Performance Requirements – Higher Damping Factor Provides for Tighter, More Accurate Sound With Improved Bass Response – Lower EMC Emissions – Output Power is Independent of Supply Voltage Variation Wide PVCC Range From (10 V to 26 V) Supports 32-kHz–192-kHz (DVD-Audio) Sample Rates (LJ/RJ/I2S) Line-Level Subwoofer PWM Outputs Audio/PWM Processing (Hardware Controlled) – 4-Step Gain Control (-3dB, 3dB, 9dB, 12dB) – Soft Mute Control (50% Output Duty Cycle) Factory-Trimmed Internal Oscillator Enables Automatic Detection of Incoming Sample Rates Thermal and Short-Circuit Protection spacer DESCRIPTION The TAS5704 is a 20-W, efficient, digital audio power amplifier for driving stereo bridge-tied speakers. Two serial data inputs allow processing of up to four discrete audio channels and seamless integration to most digital audio processors accepting a wide range of input data and clock rates. A hardware configurable data path allows these channels to be...